--- lazarus/ide/include/unix/lazbaseconf.inc
+++ lazarus/ide/include/unix/lazbaseconf.inc
@@ -24,8 +24,9 @@
 }
 
 const
-  DefaultFPCSrcDirs: array[1..15] of string = (
+  DefaultFPCSrcDirs: array[1..16] of string = (
     // search first for sources with right version
+    '/usr/lib/fpc/$(FPCVer)/source',
     '/usr/share/fpcsrc/$(FPCVer)',
     // then search for global paths
     '/usr/share/fpcsrc',
